Convert Milligrams to Ounces
1 milligram is 0.000035 oz. One milligram is exactly 0.0000352739619496 ounces.
One milligram is 3.5274 × 10^-5 ounces. To convert milligrams to ounces, multiply by 3.5274 × 10^-5; to go the other way, divide by 3.5274 × 10^-5 or multiply by 28349.523. The factor is exact rather than rounded: it follows from NIST Handbook 44. One thousandth of a gram, and exactly 1,000 micrograms.
Factor checked against the defining standard · How we check
Ounces
0.000035 oz
- Milligrams × 3.5274 × 10^-5
value * 0.00003527396194960 oz
1 milligram in every weight unit
| Unit | Value | Exact factor |
|---|---|---|
| ounces | 0.00003527396195 oz | × 0.0000352739619496 |
| pounds | 0.000002204622622 lb | × 0.00000220462262185 |
| stone | 0.0000001574730444 st | × 0.000000157473044418 |
| US tons | 0.000000001102311311 ton | × 0.00000000110231131092 |
| micrograms | 1,000 mcg | × 1,000 |
| milligrams (as entered) | 1 mg | — |
| grams | 0.001 g | × 0.001 |
| kilograms | 0.000001 kg | × 0.000001 |
| tonnes | 0.000000001 t | × 0.000000001 |
Factors are entered by hand from NIST Handbook 44 rather than derived from a units library, so the ones that terminate are exact rather than rounded.
How do you convert milligrams to ounces?
- 1.Take the measurement in milligrams.
- 2.Multiply by 3.5274 × 10^-5 — that is how many ounces fit in one milligram.
- 3.To go back the other way, divide by 3.5274 × 10^-5, or multiply by 28349.523.
Milligrams to ounces conversion table
| Milligrams | Ounces |
|---|---|
| 1 mg | 0.000035 oz |
| 2 mg | 0.000071 oz |
| 3 mg | 0.000106 oz |
| 4 mg | 0.000141 oz |
| 5 mg | 0.000176 oz |
| 6 mg | 0.000212 oz |
| 7 mg | 0.000247 oz |
| 8 mg | 0.000282 oz |
| 9 mg | 0.000317 oz |
| 10 mg | 0.000353 oz |
| 12 mg | 0.000423 oz |
| 15 mg | 0.000529 oz |
| 20 mg | 0.000705 oz |
| 25 mg | 0.000882 oz |
| 50 mg | 0.001764 oz |
| 100 mg | 0.003527 oz |
What are milligrams and ounces?
- Milligram (mg)
- One thousandth of a gram, and exactly 1,000 micrograms. The unit almost every medicine is dosed in.
- Ounce (oz)
- One sixteenth of a pound. Not to be confused with the fluid ounce, which measures volume.
Questions people actually ask
- How many ounces are in a milligram?
- 3.5274 × 10^-5. One sixteenth of a pound. Not to be confused with the fluid ounce, which measures volume.
- How do I convert ounces back to milligrams?
- Divide by 3.5274 × 10^-5, or multiply by 28349.523 — they are the same operation.
Other weight conversions
Ounces to milligrams — the same conversion the other way.